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A combo of two recent file pictures show former Iranian parliament speaker and leader of the National Confidence reformist party, Mehdi Karroubi (L), addressing a press conference in Tehran on October 12, 2008 and former prime minister and opposition leader Mir Hossein Mousavi speaking...

Getty Images 4 months ago

Bodyguards adjust defeated presidential candidate Mehdi Karroubi's turban, after he lost while coming under attack from men in plainclothes on his way to the Friday prayer on July 17, 2009.

Getty Images 4 months ago

Bodyguards of Iranian defeated presidential candidate Mehdi Karroubi (C), remove his turban off the ground after he came under attack from men in plainclothes on his way to the Friday prayer on July 17, 2009.

Getty Images 4 months ago

Bodyguards protect Iranian defeated presidential candidate Mehdi Karroubi, who is loosing his turban after coming under attack from men in plainclothes on his way to the Friday prayer on July 17, 2009.

AP Photo 5 months ago

In this citizen photograph taken Sunday, June 28, 2009, Reformist presidential candidate Mehdi Karroubi, attends during a gathering in Ghoba Mosque in Tehran, Iran.

AP Photo 5 months ago

In this citizen photograph taken Sunday, June 28, 2009, Reformist Presidential candidate Mehdi Karroubi, 2nd right, listens to reformist Hadi Ghaffari, during a gathering in Ghoba Mosque in Tehran, Iran.

AP Photo 5 months ago

In this citizen photograph taken Sunday, June 28, 2009, Reformist presidential candidate Mehdi Karroubi, attends during a gathering in Ghoba Mosque in Tehran, Iran.

AP Photo 5 months ago

In this citizen photograph taken Sunday, June 28, 2009, Reformist Presidential candidate Mehdi Karroubi, 2nd right, listens to reformist Hadi Ghaffari, during a gathering in Ghoba Mosque in Tehran, Iran.

Getty Images 5 months ago

An Iranian woman holds a sign with English slogans against the disputed election win of President Mahmoud Ahmadinejad during a protest outside the Islamic republic's embassy in Kuwait City on June 20, 2009.

Getty Images 5 months ago

An Iranian woman holds a placard during a protest against the disputed election win of President Mahmoud Ahmadinejad in front of the Islamic republic's embassy in Kuwait City on June 20, 2009.

Getty Images 5 months ago

Iranians protest against the disputed election win of President Mahmoud Ahmadinejad in front of the Islamic republic's embassy in Kuwait City on June 20, 2009.

Getty Images 5 months ago

File picture dated May 15, 2009 shows Mehdi Karroubi, Iran's defeated presidential candidate, during an interview with AFP in Tehran. Karroubi has called for the cancellation of last week's election results and the holding of a fresh poll, his party website said on June 19, 2009.

Getty Images 5 months ago

Mehdi Karroubi, defeated reformist candidate for the Iranian presidency, attends a rally in Tehran on June 15, 2009.

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Shirin Firooz, 19, an Iranian college student living in the United States, sports a green scarf in support of Iranian presidential candidate, former premier Mir Hossein Mousavi, as she stands in front of a board leading to a polling station at the Islamic Education Center (IEC) in Poto...

Getty Images 5 months ago

In this file picture dated June 12, 2009, defeated Iranian presidential candidate Mehdi Karroubi shows his ink-stained finger after voting at a polling station in Tehran.

Former Parliament speaker and Iran's presidential election candidate Mehdi Karroubi places his finger print on a ballot paper during the Iranian presidential election in northern Tehran June 12, 2009.

Former Parliament speaker and Iran's presidential election candidate Mehdi Karroubi casts his ballot during the Iranian presidential election in northern Tehran June 12, 2009.

Former Parliament speaker and Iran's presidential election candidate Mehdi Karroubi looks at his ballot paper before casting his vote, during the Iranian presidential election in northern Tehran June 12, 2009.

AP Photo 5 months ago

Iran's presidential election candidate Mehdi Karroubi casts his ballot for the presidential elections in Tehran, Iran, Friday June, 12, 2009.

Jamileh Kadivar (L) and Momammad Ali Abtahi, advisors to Iranian presidential candidate Mehdi Karroubi, attend Karoubi's news conference in Tehran June 9, 2009.

Getty Images 5 months ago

An Iranian woman walks past electoral campaign posters for presidential candidate Mehdi Karroubi in Tehran on June 11, 2009.

Getty Images 5 months ago

A supporter (C) of Iranian reformist presidential candidate, Mehdi Karroubi holds his portrait during a street rally on the last night of campaigning, in Tehran early on June 11, 2009.

Getty Images 5 months ago

Iranian supporters of reformist presidential candidate Mir Hossein Mousavi take to the streets for electoral rallies in Tehran on June 8, 2009. "Bye, Bye Ahmadi!"

Getty Images 5 months ago

Iranian supporters of reformist presidential candidate Mir Hossein Mousavi take to the streets for electoral rallies in Tehran on June 8, 2009. "Bye, Bye Ahmadi!"

Getty Images 5 months ago

Valiasr Street, the longest street in Iran, linking the south with the north of Tehran, bocked by public transport vehicles as Iranians take part in a street electoral campaign rally on June 8, 2009. "Bye, Bye Ahmadi!"